HK Rifle / SMG Parts
Elevate Your HK Rifle with Premium Parts – MP5, HK416, SP5, and More!
Enhance your HK rifle with top-notch parts and accessories. From HK MP5 and HK MP5K to HK SP5 and HK UMP or HK USC, we offer a vast selection. Discover high-quality magazines, binary triggers, stocks, grips, barrels, handguards, sights, and more for your firearm. Whether you own an HK416, HK SP5K, HK G36, or HK MP5 22, we have the Heckler and Koch rifle parts you've been looking for. Shop now to upgrade your rifle to perfection.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A5 Profile
Nefarious Arms
$594.95Nefarious Arms HK MR556416 10.4" A5 Barrel An expertly crafted 10.4" barrel designed for the HK MR556 and 416 platforms. Featuring the A5 profile, this barrel balances durability and weight, making it an excellent choice for both tactical and...HKP-21873$594.95 -
On Sale
HK MP5 Cocking Tube - Extrusion - 4" - Gunsmith Special
USA
Now: $14.95Was: $39.95HK MP5 4" Cocking Tube Extrusion - Gunsmith Special This 4" cocking tube extrusion is ideal for custom HK-style firearm builds, repairs, or refurbishments, providing a solid foundation for restoring or fabricating cocking tubes on HK MP5, G3, and similar...HKP-99060Now: $14.95Was: $39.95 -
Out Of Stock
Picatinny Bipod Mount - Polymer - Rubber Feet
B&T Brugger & Thomet
$145.00B&T Bipod (Polymer) - Picatinny Mount - Rubber Feet Genuine B&T bipod with NAR adapter (Picatinny mount) for use on any firearm featuring a Picatinny bottom rail.HKP-21773$145.00 -
On Sale
HK G36, HK SL8 Side Rail Factory HK - Black - BLEMISHED
H&K Heckler & Koch
Now: $34.95Was: $67.95HK G36, HK SL8 Side Rail Factory HK - Black - BLEMISHED SCRATCHES. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Up to two side rails can be used on a G36 UMP,...HKP-01962-BNow: $34.95Was: $67.95 -
HK MP5, SP5 Barrel - 9mm - 3 Lug - New Old Stock - Rare
H&K Heckler & Koch
$987.95H&K HK MP5/SP5 3 Lug Barrel - New Old Stock - Rare Factory German date coded with H&K logo. This new old stock 3-lug item is incredibly rare and in pristine condition. An absolute gem in the market. We only have a limited number available, and...HKP-21662$987.95 -
HK MP5 Barrel - .40 S&W - 8.85" - Threaded 14x.75 with 3 Lug
RCM
$279.95RCM HK MP5 .40 S&W Barrel - Threaded 14x.75 - 3-Lug This is the ultimate US-made barrel for any new or conversion build for the MP5 .40 cal. Crafted from top-grade CHF 41v40 material, it’s machined to impeccable standards. With the correct...HKP-21582$279.95 -
HK91, G3 Blast Can - Threaded 5/8x24
MI Midwest Industries
$38.95MI Blast Can 5/8x24 Thread Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat anodized for a lifetime of service 5/8x24 Thread for .30...HKP-21536$38.95 -
HK23E, HK21E Rear Sight Base
H&K Heckler & Koch
$193.95Heckler and Koch Rear Sight Base HK21E and HK23E Genuine HK German rear site base. Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23EHKP-21508$193.95 -
Vector Arms V51 Fixed Stock
HKP HK Parts
$279.95H&K / HKP V51 Fixed Stock HK Parts A2 style stocks for the Vector V51 platform. We start with a like-new backplate and convert it into a V51 collapsible style and pair it with a like-new, hand-picked stock. The result, a complete A2 stock that...HKP-21270-M$279.95 -
HK MP5KSD Rubber Grip Only - Barrel Shroud Handguard
HKP HK Parts
$179.95HK Parts replacement rubber grip for HK MP5KSD Barrel Shroud and Handguard (Rubber Grip Only) Perfect size handguard to pair with the HKP MP5K SD shrouds. Engages perfectly on the machined lugs of our MP5K SD shrouds. Available exclusively at HK...HKP-20951$179.95 -
On Sale
.30 Cal Muzzle Brake - 3 Port - Crush Washer
Tactical Precision MFG
Now: $47.95Was: $72.99TPM Tactical Precision MFG 3 Port .30 Cal Muzzle Brake with Crush Washer This 3 port muzzle brake is made for any 5/8x24 application and comes with a crush washer. Specifications: Dimensions: 2″ x 0.75″ x 0.75″ Weight: 0.67...HKP-20900Now: $47.95Was: $72.99 -
On Sale
Bolt Knob - Acorn - Titanium
Tactical Precision MFG
Now: $24.95Was: $48.99Acorn Bolt Knob The Acorn Bolt knob is the perfect addition for those that want to dress up their rifle. It has a good grip, and they stand out in the crowd. Features: Dimensions: 1.5" x 7/8" x 7/8 Weight: 2 oz. Material: Titanium Threading: 5/16x24...HKP-20761Now: $24.95Was: $48.99